Die



Dec. 20, 1927.

H. L. GLAZE ET AL DIE Filed Jan. 27. 1926 Patented Dec. 20, 1927.

UNITED STATES 1,653,269 PATENT? oFF1cE.

HERBERT L. GLAZE AND GEOR E o. HUMPHREYLOF os ANGELES, CALIFORNIA, As-

SIGNORS TO UNITED r onnc'rs COMPANY, nc; or LOS} NeELRs, CALIFORNIA, A

CORPORATION or CALIFORNIA.

: DIE.

I Application filed January 27, 1926. Serial No.s4,o4e.

This invention relates to dies and is more particularly directed to a die for use in connection with a' machine for compressing cellulosic material to produce fuel.

In the compressingof cellulosic material to produce compact briquettes, it has been heretofore supposed that dies having restricted sections must be employed so that the finely divided cellulosic material would pack in the die andboth this restricted'section and the cellulosic material wouldnot be simply pushed or crowded through the central bore of the die. e have discovered, however, that if the die be increased'in' length sufficiently that it is not required to provide a restricted central section of the die or variable means for providing variation restrictions of the central section of the die, and we have further discovered that the compactness or density of the fuel pro duced through such a die may be easily regulated by the lengthof the die employed so that when it is desired to produce a very compact cellulosic material a. long die is employed, that is longrelative to the stroke of the plunger 0r piston acting in conjunction with the heat employed to produce the cellulosic fuel. If a fuel is desired which is not of too great compactness a shorter die may be employed. It is not believed that there is a minimum or maximum of length of diethat can be employed other than the possible minimum ofproviding a die which is greater than twice the length of the. stroke of the piston orplunger.

It is therefore an object of this invention to produce a die for use in connection with machines for compressing.cellulosic material to produce fuel. that has a straight or substantially straight central bore and which is oil. such length that the cellulosic material will be jammed therein and will become compressed on the stroke of the piston acting in conjunction with the heat imparted to the die and hence to the cellulosic material within the central bore of the die.

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It is a further object of this invention to provide a die having a plurality of bores therein through which portions of the cellulosic material being pressed in the die combustible gas and steam produced during the process are exuded'into a stove surrounding the die and which portions of the cellulosic material areignitedto provide the heat required for the production of the cellulosic fueL Other objects and advantages of this invention will be apparent from the following detailed description of a preferred embodiment thereof, as illustrated in the accompanying drawings, in which drawings:

Fig. lis a side elevation partlyinsection of a .cellulosic fuel compressing machine illustrating in central sectional side elevation dies embodying thisjinvention as adapted for use 1n conjunction therewith.

Fig. 2 is an enlarged sectional side ele- I vation of va fuel die embodying this invention, illustrating the same as secured to a fragment of the compressing machine and illustrating likewise in side elevation a stove surrounding the die.

Fig. 3 is an endelevation taken substan-' tially on the line 3-3 of Fig. 2.

In the preferred embodiment of this invention illustrated in the accompanying drawings, 1 illustrates a standard upon which a frame 2 is supported. Supported in theframe 2 is ashaft 3 driven through a gear 4 which meshes with a pinion gear 5 mounted upon a shaft 6 driven from a source and through connections not herein illustrated. An eccentric 7 is secured to the shaft 3 and is pivotally connected to a sliding block 8 by means of a pin 9. The slidyoke type which yoke 10 is connected bymeans of rods 11 to pistons or plungers 12. 13 illustrates a feed'spoutinto which finely divided ccllulosic material, such as sawdust.

forced into thedie will be exuded through the ports or bores 18. mounted upon the exhaust end ofthe die 15 to catch the briquettes as the same are ex- A catcher 19 is.

great. a portion of the cellulosicmaterial pared from the interior oi. the as on the f 85 ing block 8 travels in a yoke lO of theScotch i compression stroke of the plunger lQ. This catcher comprises a plurality of spring fingers 20 which act merely to retard the force of expulsion of the briquettes from the Central bore 17 ofthe die. The catcher I9 is secured to the forward end of the die 15 by any suitable means, such as illustrated at 21.

A stove 22 completely surrounds the die .15 and a gas burner 28 is mounted Within the stove 22 and is supplied with gas through a valve conduit 24 from any suitable source.

A smoke stack 25 is provided to carryaway the products of combustion formed Within the stove 22. The operation of the die15 is as follows .The burner 23 is first set into operation to heat the die. The plunger 12 is then then set in operation and cellulosic material dropped into the feed spouts 13. The

end of theplung'er 12 then- .torces the fuel from the chamhers 141 into the central. bore 17' of the 'die. On successive strokes of the plunger the finely divided cellulosic material becomes wedged Within the -central bore 17 of the die and upon continued operation the cellulosic material is compressed (luring which compression, portions of the cellulosie material compressed Within the central portion-ot the here 17 are exuded from the bores18 and are ignited in the stove 2 2.

After the machine has been in operation for a sufficient time to raise the die to the requisite teniperature, the gas supply to the 'burnerQS may bediscontinued and the material exuded from the bores 18'Will burn without the stove 22 to provide the heat required for the compression of the eellulosic material.

:The bore 17 of the die 15 is uniform throughout its length and need not be re- The length of thedie 15 and hence the bore 17 must lie-greater than twice the length of the piston12.

""lVe have discovered that hores18 in the 'die 15 produce a further and important result during the compression of the eellulo'sic material in that they provide an avenue of escape from the bore 17 of the die for the steam and gas produced during the'compr'esion and heating of the material. Gaslpoc'k ets formed within the die" and the briquettes produced areeliminated. The provision of these bores also eliii1inates"tl1e building up of pressure Within the die which pressure in many instances before the provisionof such bores caused the die to act in; the'nature of a cannon and shot the briquettes from the machine.

' Having fully described a "preferred embodiment oi": this invention, it is to be understood that WQClO not Wish toi 'be limited to" the exact details of construction herein set forth, which may obviously be varied in dein the borecommuniea'ti tail Without departingjrom the spirit of our invention as set forth in the appended claims.

Vve claim:

1. A. die comprising'a cylinderhaving a central bore and a plurality of ports formed in the bore and communicating with the eX- terior oi the die through which cellulosic material is exuded to heat the die, and a stove surrounding the die.

2. A die comprising a cylinder having a bore formed therethro'ugh. a plurality of rearwardly inclinedmports formed in the die for establishing: communication from the bore to the die to the exterior thereof through: which c ellulosic materialand -gas are expelled and a stove surrounding the die. 7 7.

A die comprising a tube. having a bore formed therethrough, a... plurality of 'ports.

for establishing communication from the here to the exterior of the die through'which eellulosic material and gas are 'eXpelled,'-and means secured to the exit end of thediefor arresting motion oi. the cellulosio material WllQll the same is expelled from the die.

=4. A die con'iprising a tube having a central bore therein into which a piston is adapted to force cellulosic material under pressure. a stove surrounding the die, a, pluralitv oi ports termed in the die through which cellulosic material andgasis forced from the die into the stove to heat the die and means secured to the exit end of the die for resisting the expulsion ofthe compressed from the die.

7 r k'clie'cemprising a cylinder hevinga 'centr'alfbore and a plura y of: ports formed. 1 withthe exterior of the die, through which 'cellulosie emate- "rial is'exude'd to heat'tlnedie a stove surrounding the die, and springmeans secured to the exit .end of the 'die for arresting motionof the cellulosie material when the same is expelled from the die.

Signed at Los Angeles, California," this 19 day of January, 1926.

ERBERT L. GLAZE. I,

GEORGE o; HUMPHREY. 

